G413       *Watch your ARENA interaction. A ROBOT is prohibited from the following interactions with an ARENA element, except for SCORING ELEMENTS (per G407):

G424       GATE ZONE is OFF LIMITS. A ROBOT may not contact, directly or transitively though a SCORING ELEMENT, an opponent ROBOT if either ROBOT is in the opponent’s GATE ZONE, regardless of who initiates contact. Exceptions:

G423       *Do not use strategies intended to shut down major parts of gameplay.  A ROBOT or ROBOTS may not, in the judgment of a REFEREE, isolate or close off any major element of MATCH play for a greater-than-MOMENTARY duration.

G405       *ROBOTS use SCORING ELEMENTS as directed. A ROBOT may not deliberately use a SCORING ELEMENT in an attempt to ease or amplify a challenge associated with a FIELD element other than as intended.